673257242 has 24 divisors (see below), whose sum is σ = 1206530976. Its totient is φ = 275990616.

The previous prime is 673257223. The next prime is 673257253. The reversal of 673257242 is 242752376.

673257242 = T₄₃₈₃ + T₄₃₈₄ + ... + T₄₄₅₁.

It is a junction number, because it is equal to n+sod(n) for n = 673257196 and 673257205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38048 + ... + 52859.

It is an arithmetic number, because the mean of its divisors is an integer number (50272124).

Almost surely, 2^673257242 is an apocalyptic number.

673257242 is a deficient number, since it is larger than the sum of its proper divisors (533273734).

673257242 is a wasteful number, since it uses less digits than its factorization.

673257242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90962 (or 90939 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 673257242 is about 25947.2010436579. The cubic root of 673257242 is about 876.4497292849.

The spelling of 673257242 in words is "six hundred seventy-three million, two hundred fifty-seven thousand, two hundred forty-two".